Audrey has recently purchased a home with a $325,000 mortgage. She opted for monthly payments, a term of 5 years at a rate of 3.2%, and an amortization period of 25 years. Had Audrey chosen, instead, an accelerated bi-weekly payment, how much interest would she save over the life of the mortgage? Hint: You will need to determine the number of accelerated bi-weekly payments would be required to pay off the mortgage. Round to the nearest dollar.

a) $146,477

b) $127,959

c) $19,420

d) $18,518